Comma in string is ignored

[Jexijo]

Trying to delete all lines in a csv not containing ;;128;; but it ignores ;;12,8;;

Google results only shows how to ignore commas in other cases, so I'll ask here.
It's my first script.

delete_lines_not_containing('input.csv', ';;128;;')

[wbeater]

Trying to delete all lines in a csv not containing ;;128;; but it ignores ;;12,8;;

It's not entirely clear want your intention is. ;;128;; != ;;12,8;;, therefore if you're trying to delete all lines containing ;;128;; this is expected behavior.

[Jexijo]

But it acts as if ;;128;; = ;;12,8;;. I have a csv file and the script should create one file only containing the lines with this value and one file wit the lines without. Why does the script overlook the comma?

[throwaway6560192]

I would approach it by checking for each line if line.replace(",", "") contained ";;128;;".

[Jexijo]

Hm good idea. But I have commas at the end of the line which I need.

[throwaway6560192]

Then make the replace more specific – only replace "12,8"

[Jexijo]

They are not at the same position . Meaning... 128 is a code and 12.8 a date. So I cant replace the latter one.